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Perigold truffles are getting rarer

Bad news for gourmets - Perigord truffles are becoming rarer. A new study published in the journal Nature Climate Change, combining climatology, dendrochronology and mycology, has now linked this decline with the warm dry summers of recent years.

Average rainfall together with lower summer temperatures are needed to stimulate truffle growth in winter but unfortunately scientists are predicting a continuatuion of dry Mediterranean summers until the end of the 21st century.

All is not lost though – Switzerland is showing promise for truffles and there have been good yields of Burgundy truffles  in southern Germany. So the solution to sustainable truffles may lie in the colder wetter north of Europe.

Story source: Science Daily, 27 Nov 2012

Journal reference: Ulf Buntgen, Simon Egli, J. Julio Camarero, Erich M. Fischer, Ulrich Stobbe, Havard Kauserud, Willy Tegel, Ludger Sproll, Nils C. Stenseth. Drought-induced decline in Mediterranean truffle harvest. Nature Climate Change, 2012; 2 (12): 827 DOI: 10.1038/nclimate1733

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